SOLUTION: suppose you want to test the claim that μ ≤ 25.6. given the sample size of n=53 and a level of significance of a=0.01, when should you reject H0?

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Question 1083359: suppose you want to test the claim that μ ≤ 25.6. given the sample size of n=53 and a level of significance of a=0.01, when should you reject H0?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
I need the standard deviation of either the population or the sample, assuming the population is normally distributed and the variables iid, independently, identically distributed.
I would want a test statistic of -2.67 or less for a one-sided test.